Hello,
Yesterday I brought my gilded cannon to the emole and usually I just tele out after i've finished the kill and the cannon goes into my inventory or into my bank.
Neither of this happened and the cannon were still standing at the emole when I came back later for another kill. This time I tried to pick up the cannon, but it didn't appear in my inventory or in my bank.
So in my bank there is only placeholders for the cannon itself, but no cannon.